Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, a polyethyleneamine mixture having a number average molecular weight of 175 to 450 and an alkali metal, phosphonium or ammonium sulfite. Foams so produced emit low levels of formaldehyde, acetaldehyde, acrolein and propionaldehyde.

Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one cyclic 1,3-diketone compound, at least one aminoalcohol or alkylhydroxylamine and an alkali metal, phosphonium or ammonium sulfite. Foams so produced emit low levels of formaldehyde, acetaldehyde, acrolein and propionaldehyde.

This invention generally provides composition for making a polyurethane foam with reduced aldehyde emission and more specially to composition useful in means of transport such as interior part of cars, wherein composition is comprising: (a) a polyfunctional isocyanate; (b) an isocyanate reactive composition; and (c) a compound of the formula (I) or (II), wherein the compound (c) is present by weight percentage in the composition in an amount ranging from about 0.001 to about 10, preferably from about 0.01 to about 5, and more preferably from about 0.05 to about 2 based on the total weight of the composition. The compositions can reduce aldehyde emission, especially acetaldehyde emission in the PU foam and has no obvious influence on the mechanic properties of the foam.

Described herein is a perfluorinated aminoolefin compound of general formula (I): CFY═CXN(R.sub.f)CF.sub.2R.sub.f′ where: (a) R.sub.f and R.sub.f′ are (i) independently selected from a linear or branched perfluoroalkyl group having 1-8 carbon atoms, optionally comprising at least one catenated O or N atom, or (ii) bonded together to form a perfluorinated ring structure having 4-8 ring carbon atoms, optionally comprising at least one catenated O atom; and (b) X and Y are (i) independently selected from a perfluoroalkyl group having 1-4 carbon atoms, or (ii) bonded together to form a perfluorinated ring structure having 5-6 ring carbon atoms. Such compounds may be used in heat transfer, foam blowing or immersion cooling applications, or as a working fluid in a Rankine cycle, a coating or lubricant, or as a dielectric fluid. Also disclosed herein is a method for making such compounds.

The present disclosure relates to an expanded foam solution for forming a thermosetting expanded foam having excellent flame retardancy produced using the same. According to the present disclosure, nanoclay is mixed with a polyol-based compound using ultrasonic waves, an isocyanate-based compound is added, and a trimerization catalyst or an isocyanurate compound is mixed with the polyol-based compound so that an isocyanurate structure is formed.

A preparation method of a flexible polyurethane foam includes the following steps of: (1) subjecting an epoxidized vegetable oil, a benzoylformic acid, a basic catalyst, and an inert solvent to a ring-opening reaction in a first microchannel reactor of a microchannel reaction device to obtain a vegetable oil polyol; (2) subjecting the vegetable oil polyol obtained in the step (1), a propylene oxide and an inert solvent to an addition polymerization reaction in a second microchannel reactor of the microchannel reaction device to obtain a vegetable oil polyol for flexible polyurethane foam; and (3) using the vegetable oil polyol for flexible polyurethane foam obtained in the step (2) as the unique polyol, and subjecting the same and an isocyanate polyol to a foaming reaction to obtain the flexible polyurethane foam.

A polyurethane-polyurea comprising water blown foam having an apparent density in the range 30-700 kg/m.sup.3 measured according to ISO 845 and having a tensile strength (measured according to DIN 53504) over apparent density ratio of at least 10 kPa.Math.m.sup.3/kg.

These foams are very suitable for use in footwear and automotive and more in particular in applications aiming for consumer comfort.

The invention relates to a process for preparing a flame-resistant polymer-modified polyol having a solids content of 1 to 65 wt. % wherein (i) at least one polyisocyanate and (ii) an olamine are reacted in (iii) a base polyol having at least two active hydrogen containing groups of which more than 50% are primary active hydrogen containing groups and wherein the olamine has at least one phosphonic ester group attached to a tertiary nitrogen atom and contains at least two hydroxyl groups. The invention further relates to a flame-resistant polymer-modified polyol obtainable with the process of the invention, to a process for preparing optionally foamed plastics using the polymer-modified polyol of the invention, and to the use of a polymer-modified polyol for the preparation of flexible polyurethane foams.

A reactive foam formulation and method for forming a polyurethane-polyurea comprising water blown foam having an apparent density in the range 30-700 kg/m.sup.3 measured according to ISO 845 and having a tensile strength (measured according to DIN 53504) over apparent density ratio of at least 10 kPa.Math.m 3/kg.

Furthermore, foams having elastomeric behaviour and significant improved mechanical properties such as tensile strength and ball rebound are disclosed. These foams are very suitable for use in footwear and automotive and more in particular in applications aiming for consumer comfort.

Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one cyclic 1,3-diketone and at least one aminoalcohol or alkylhydroxylamine. Foams so produced emit low levels of formaldehyde, acetaldehyde and propionaldehyde.